Sodium carbonate on reaction with hydrochloric acid in equalmolar concentrations gives sodium chloride and sodiumhydrogencarbonate
Question
Sodium carbonate on reaction with hydrochloric acid in equal molar concentrations gives sodium chloride and sodium hydrogencarbonate.
Solution
The reaction you're referring to seems to be a bit incorrect. Sodium carbonate (Na2CO3) reacts with hydrochloric acid (HCl) to produce sodium chloride (NaCl) and carbonic acid (H2CO3), not sodium bicarbonate. The reaction is as follows:
Na2CO3 + 2HCl -> 2NaCl + H2CO3
The carbonic acid then decomposes into water and carbon dioxide:
H2CO3 -> H2O + CO2
So, the overall reaction is:
Na2CO3 + 2HCl -> 2NaCl + H2O + CO2
This is a type of double displacement reaction, where the sodium (Na) and hydrogen (H) ions switch places.
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